Test apparatus, to apply a changing cyclic beating action on a test piece, has a weighted lever arm moved by a lower roller trolley unit to strike the test piece at high frequencies

摘要

The test apparatus (1), to apply a changing cyclic beating action on a test piece (2), has a beating lever arm (3) striking the test piece with a fixed weight (4) of a body mass (m) on it. The lever arm is moved by a roller trolley unit (7) under it, with the beating force set by the position of the trolley.